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Publications
Silveira, M.F., Wang, S. and Guedes Soares, C. (2023), Comparison between deforming meshes and overset meshes for water entry of a wedge, Advances in the Analysis and Design of Marine Structures, Ringsberg, J.W. & Guedes Soares C., (Eds.), Taylor & Francis Group, London, UK, pp. 125-132
Water entry of a wedge into calm water is investigated by multiphase simulations using the open source CFD toolbox OpenFOAM. Comparisons are made between the dynamic and kinematic results using deforming meshes and overset meshes. Firstly, the simulation of a wedge with a deadrise of 30º is simulated using the overset grids with different resolutions. Uncertainty analysis is made for the maximum acceleration and pressure coefficient of the wedge during water entry. The numerical predictions of vertical displacement, velocity, acceleration and slamming pressures are also validated against the published experiments. Then the results from the fine resolution with overset grids are compared to the ones from the morphing meshes. In general, the results are in accordance with each other, and differences are observed mostly at the peaks, however the overset mesh method requires more of the CPU than the morphing method.
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